Power unit



FIG. 1 is a perspective view of a power unit showing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a back elevation view thereof;

FIG. 4 is a top view thereof; and,

FIG. 5 is a left side elevation view thereof.

The even-broken line shown in the drawing views is for the purpose of illustrating unclaimed environment only and forms no part of the claimed design. The dash-dot line shown in the drawing views is for the purpose of indicating the bounds of the claimed design and forms no part of the claimed design. 

CLAIM The ornamental design for a power unit, as shown and described. 